Safariland's Model 578 GLS Pro-Fit brings the unique GLS (Grip Lock System) and SafariSeven together in a holster designed to fit a wide variety of guns. The GLS is an innovative technology that automatically secures the weapon when holstered. The gun is released upon application of the middle finger with a standard shooting grip for a more intuitive and safer release. The Pro-Fit is customizable and adjusts to securely fit over 175 firearms. Constructed with SafariSeven, a lightweight, state-of-the-art nylon blend that is completely non-abrasive to a gun's finish, tolerant of extreme temperatures, and easy to maintain. Includes an injection-molded paddle and an injection-molded belt loop that is adjustable for maximum comfort and allows the holster to be worn cross draw.